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Gas Tank Vent

Discussion in 'Daihatsu Hi jet' started by jody, Dec 31, 2018.

  1. jody

    jody Member

    HiJet S83P Jumbo. Was having carb issues. Carb was flooding the engine. It seems that I can't blow air threw the return line and believe this to be the flooding problem. Traced it to the fuel tank and without taking the tank off it seems to be some sort of valve. I can create a vacuum by sucking on the line but can not get it to blow through. If I take the cap off I can blow through. Any ideas before I lower the tank and look at the connection? I was thinking of just routing it into the overflow hose but if the tank has pressure and does not release. I'll have the same problem.
    Thanks in advance.
  2. ttc

    ttc Active Member

    its the charcoal canister. mine does the same and has filled the base with fuel 2 times in the past. the tank pressurizes with fuel vapor and it is enough to push fuel through the to the carb and over flowing it.
  3. Woody

    Woody New Member

    How did you solve the problem - clean/modify/replace the canister or something else?

  4. jody

    jody Member

    Just took off the canister and there seems to be no problem with it. I can blow threw it with no problem. There has to be some sort of relief for the gas tank and I'm debating dropping it to look at the return system and see if anything is out of the norm. I can get the truck to run if I loosen the gas gas cap but I soon as I tighten it, the engine floods.
    I was sure hoping it was the canister as it was easy to take off. Thanks ttc for the suggestion.
  5. ttc

    ttc Active Member

    Right now in don't keep the cap on tight and disconnected the vent from the tank. The canister i think was 100 plus bucks

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